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70b13596e4
This is a 'green' Flogger migration CL. Green CLs are intended to be as safe as possible and should be easy to review and submit. No changes should be necessary to the code itself prior to submission, but small changes to BUILD files may be required. Changes within files are completely independent of each other, so this CL can be safely split up for review using tools such as Rosie. For more information, see [] Base CL: 197826149 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=198560170
68 lines
2.8 KiB
Java
68 lines
2.8 KiB
Java
// Copyright 2018 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.module.pubapi;
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import com.google.appengine.api.LifecycleManager;
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import com.google.common.flogger.FluentLogger;
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import com.google.monitoring.metrics.MetricReporter;
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import dagger.Lazy;
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import java.io.IOException;
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import java.security.Security;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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/** Servlet that should handle all requests to our "default" App Engine module. */
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public final class PubApiServlet extends HttpServlet {
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private static final PubApiComponent component = DaggerPubApiComponent.create();
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private static final PubApiRequestHandler requestHandler = component.requestHandler();
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private static final Lazy<MetricReporter> metricReporter = component.metricReporter();
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private static final FluentLogger logger = FluentLogger.forEnclosingClass();
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@Override
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public void init() {
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Security.addProvider(new BouncyCastleProvider());
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// If metric reporter failed to instantiate for any reason (bad keyring, bad json credential,
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// etc), we log the error but keep the main thread running. Also the shutdown hook will only be
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// registered if metric reporter starts up correctly.
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try {
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metricReporter.get().startAsync().awaitRunning(10, TimeUnit.SECONDS);
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logger.atInfo().log("Started up MetricReporter");
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LifecycleManager.getInstance()
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.setShutdownHook(
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() -> {
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try {
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metricReporter.get().stopAsync().awaitTerminated(10, TimeUnit.SECONDS);
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logger.atInfo().log("Shut down MetricReporter");
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} catch (TimeoutException e) {
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logger.atSevere().withCause(e).log("Failed to stop MetricReporter.");
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}
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});
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} catch (Exception e) {
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logger.atSevere().withCause(e).log("Failed to initialize MetricReporter.");
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}
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}
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@Override
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public void service(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
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logger.atInfo().log("Received frontend request");
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requestHandler.handleRequest(req, rsp);
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}
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}
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